Where clause is used to apply condition on to filter the records.
It is used to get the desired record.
Syntax:
SELECT * FROM table_name
where condition;
Example: To fetch only the record of roll no. 2 :
SELECT * FROM students
where Roll_NO = 2;
This will fetch the values as shown below:
Roll_NO | Name | Total_Marks | Phone_Number |
2 | Rahul | 68 | 2147483647 |
Operators used with where clause:
Operator | Description |
---|---|
= | Equal |
> | Greater than |
< | Less than |
>= | Greater than or equal |
<= | Less than or equal |
<> | Not equal. Note: In some versions of SQL this operator may be written as != |
BETWEEN | Between a certain range |
LIKE | Search for a pattern |
IN | To specify multiple possible values for a column |